Siren's Call [Alpha Edition] Urza's Destiny " said Urza

" said Urza

Set: Champs and States Type: Creature — Elemental Rarity: Rare Cost: {G}{G}{G} Trample

untap up to seven lands

where X is the number of lands you control at that time

Mana Crypt deals 3 damage to you

Siren's Call [Alpha Edition] Urza's Destiny " said UrzaSet: Alpha Edition Type: Instant Rarity: Uncommon Cost: {U} Cast this spell only during an opponent's turn, before attackers are declared. Creatures the active player controls attack this turn if able. At the beginning of the next end step, destroy all non Wall creatures that player controls that didn't attack this turn. Ignore this effect for each creature the player didn't control continuously since the beginning of the turn.